本文结合香精油的理化性质及其作用机理，对其在动物生产中的抗菌作用和对营养物质代谢的影响进行介绍。
In this article, the physicochemical property and mechanism of essential oil and its antibacterial action in animal production as well as the influence to nutrient metabolism were reviewed.
并对两种不同性质纳米颗粒所起作用的可能机理进行讨论，从理论和实验上证明了纳米颗粒对固定酶的作用。
A mechanism for the behavior of the different kind of nanoparticles is proposed. The experiment and theory proved the function of nanoparticles in immobilization enzyme.
分析了不同性质构造力作用下含油气盆地的地应力类型和分布规律，从机理上说明了各类盆地的构造及断裂特点。
For basins under the action of different tectonic forces, types of stress environment, their distribution and the genetic mechanics of main structural characters have been studied.
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